Bash function to check whether/when a WordPress URL was cached by WP Rocket

fn-wprockettest.sh

# Usage: wprockettest https://example.com/some-path/
wprockettest() {
  URL="$1"
  echo -n "$URL --> "
  
  RES="$(curl -ksvG "$URL" 2>&1)"
  CODE="$(echo "$RES" | grep -E '^< HTTP' | awk '{print $3}')"
  
  CACHE_STATUS="Not cached"
  
  if [ "$CODE" == "200" ]; then
    CACHEDATE="$(echo "$RES" | grep -oE 'cached@[0-9]+' | cut -d@ -f2)"
    if [ -n "$CACHEDATE" ]; then
  	CACHE_STATUS="Cached at $(date -d @"$CACHEDATE")"
  	NCACHED=$((NCACHED+1))
    fi
  fi
  
  echo "$CODE - $CACHE_STATUS"
}